Press the ACTION MENU button, then select [Speakers] — [TV speakers].
If it is set to [Audio system], the TV speakers only output key tones or system sounds.
Related topics
No audio or low audio with a home theater system.
[127] Troubleshooting | Sound
Audio noise.
Make sure that the antenna is connected using a high quality 75-ohm coaxial cable.
Keep the antenna cable away from other connecting cables.
To avoid TV interference, make sure to use an undamaged antenna cable.
Related topics
Distorted sound.
[128] Troubleshooting | Sound
No audio or low audio with a home theater system.
Press the ACTION MENU button, then select [Speakers] — [Audio system].
Set [Headphone/Audio out] to [Audio out (Fixed)] in the [Sound] setting.
Depending on your model, if [Speakers] is set to [TV speakers] and [Hi Res upscaling (DSEE HX)]
is set to [Auto], DIGITAL AUDIO OUT (OPTICAL) is muted.
Set [Digital audio out volume] to Max in the [Sound] setting.
When using HDMI input with Super Audio CD or DVD-Audio, DIGITAL AUDIO OUT (OPTICAL) may
not provide an audio signal.
Related topics
Audio noise.
Connecting an audio system
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